Add vscode overlay that pins 1.52.1 so that liveshare works

overlays/vscode/default.nix

@@ -0,0 +1,61 @@
+{ stdenv, lib, callPackage, fetchurl, isInsiders ? false }:
+
+let
+  inherit (stdenv.hostPlatform) system;
+
+  plat = {
+    x86_64-linux = "linux-x64";
+    x86_64-darwin = "darwin";
+    aarch64-linux = "linux-arm64";
+    armv7l-linux = "linux-armhf";
+  }.${system};
+
+  archive_fmt = if system == "x86_64-darwin" then "zip" else "tar.gz";
+
+  sha256 = {
+    x86_64-linux = "1kbjbqb03yapz7067q589gaa7d6cqaipj7hmp1l3nh0bmggzsc4c";
+    x86_64-darwin = "1qgadm52c5lzkvgvqrz0n8brm4qbjg8hf1dk6a2ynqhqjxcwbj4r";
+    aarch64-linux = "0i3yl9rx9h7qkl3k9qk6gg35nhz737qzzbvzvdwkqjaacsbpfgf8";
+    armv7l-linux = "19iz2bxcq6y8sklr6zcnbp47kki9l00x3nvr213lkk3kj08l0afv";
+  }.${system};
+in callPackage ./generic.nix rec {
+  # The update script doesn't correctly change the hash for darwin, so please:
+  # nixpkgs-update: no auto update
+
+  # Please backport all compatible updates to the stable release.
+  # This is important for the extension ecosystem.
+  version = "1.52.1";
+  pname = "vscode";
+
+  executableName = "code" + lib.optionalString isInsiders "-insiders";
+  longName = "Visual Studio Code" + lib.optionalString isInsiders " - Insiders";
+  shortName = "Code" + lib.optionalString isInsiders " - Insiders";
+
+  src = fetchurl {
+    name = "VSCode_${version}_${plat}.${archive_fmt}";
+    url = "https://vscode-update.azurewebsites.net/${version}/${plat}/stable";
+    inherit sha256;
+  };
+
+  sourceRoot = "";
+
+  meta = with lib; {
+    description = ''
+      Open source source code editor developed by Microsoft for Windows,
+      Linux and macOS
+    '';
+    longDescription = ''
+      Open source source code editor developed by Microsoft for Windows,
+      Linux and macOS. It includes support for debugging, embedded Git
+      control, syntax highlighting, intelligent code completion, snippets,
+      and code refactoring. It is also customizable, so users can change the
+      editor's theme, keyboard shortcuts, and preferences
+    '';
+    homepage = "https://code.visualstudio.com/";
+    downloadPage = "https://code.visualstudio.com/Updates";
+    license = licenses.unfree;
+    maintainers = with maintainers; [ eadwu synthetica ];
+    platforms =
+      [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "armv7l-linux" ];
+  };
+}